<!DOCTYPE html>
<html lang="zh-cn">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Title</title>
    <link rel="stylesheet" href="./css/base.css">
    <link rel="stylesheet" href="./css/11.css">
</head>
<body>
    <div class="box">
        <p>前置内容</p>
        <div class="info info-1">内容元素</div>
        <p>后置内容</p>
    </div>
    <hr>
    <div class="box">
        <p>前置内容</p>
        <div class="info info-2">内容元素</div>
        <p>后置内容</p>
    </div>
    <hr>
    <div class="box box-3">
        <p>前置内容</p>
        <div class="info info-3">内容元素</div>
        <p>后置内容</p>
    </div>
</body>
</html>